The FlexFrame Series provides a quick and easy solution for transporting U-locks and KryptoFlex cable locks on bicycles. The holder can be adapted to frames and tube thicknesses between 25-80 mm, regardless of whether they are round, oval, triangular or rectangular. The system allows a 360 degree rotation of the mount as well as a fine adjustment of the mounting angle. FlexFrame-U is compatible with U-locks of 13 & 16 mm diameter. The FlexFrame holder convinces with quick and easy assembly and offers a variety of placement options.
The FlexFrame Series provides a quick and easy solution for transporting U-locks and KryptoFlex cable locks on bicycles. The holder can be adapted to frames and tube thicknesses between 25-80 mm, regardless of whether they are round, oval, triangular or rectangular. The system allows a 360 degree rotation of the mount as well as a fine adjustment of the mounting angle. FlexFrame-U is compatible with U-locks of 13 & 16 mm diameter. The FlexFrame holder convinces with quick and easy assembly and offers a variety of placement options.
The FlexFrame Series provides a quick and easy solution for transporting U-locks and KryptoFlex cable locks on bicycles. The holder can be adapted to frames and tube thicknesses between 25-80 mm, regardless of whether they are round, oval, triangular or rectangular. The system allows a 360 degree rotation of the mount as well as a fine adjustment of the mounting angle. FlexFrame-U is compatible with U-locks of 13 & 16 mm diameter. The FlexFrame holder convinces with quick and easy assembly and offers a variety of placement options.
The FlexFrame Series provides a quick and easy solution for transporting U-locks and KryptoFlex cable locks on bicycles. The holder can be adapted to frames and tube thicknesses between 25-80 mm, regardless of whether they are round, oval, triangular or rectangular. The system allows a 360 degree rotation of the mount as well as a fine adjustment of the mounting angle. FlexFrame-U is compatible with U-locks of 13 & 16 mm diameter. The FlexFrame holder convinces with quick and easy assembly and offers a variety of placement options.
Last updated at 03/21/2026 21:38:13
Vintage U Lock Quick Release Mount For Bike Bicycle Easy Open
Delivery $31.75
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Kryptonite Transit Flex-Frame Bracket
Delivery $15
Kryptonite Transit FlexFrame U-lock holder - black/polished
Delivery $59.14
Kryptonite Transit Flexframe-U Bracket Lock Black/Steel
Delivery between Tue – Fri $9.90
Kryptonite Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for
Delivery between Tue – Wed $14.20
Kryptonite Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for
Delivery between 29–31 Mar $14.37
Kryptonite Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for
Delivery between 26–30 Mar $13.50
Kryptonite Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for
Delivery between 26–30 Mar $7.26
Transfit FlexFrame-U Bracket - New One Size
Delivery between 24 Mar – 4 Apr $28.38
originally posted on tredz.co.uk
I bought this to replace an older bracket that had stopped working because a tiny spring had rusted to dust over 5 years of service.This new bracket has done away with the spring so should not suffer the same fate.Installation is really easy though I don't like the bit of strap that's left sticking out.I know the instructions say to cut it short and re-seal the end but I might want to move the bracket to a different part of the bike or a different bike all together so I have taped the loose end to the bike for now.This new bracket also has a different way of attaching the lock and provides 2 mounting adaptors, one is too small (12mm) for my shackle and the other is too big (16mm) so I have shimmed the shackle so the large adaptor fits.Once in place the bracket ... MoreI bought this to replace an older bracket that had stopped working because a tiny spring had rusted to dust over 5 years of service.This new bracket has done away with the spring so should not suffer the same fate.Installation is really easy though I don't like the bit of strap that's left sticking out.I know the instructions say to cut it short and re-seal the end but I might want to move the bracket to a different part of the bike or a different bike all together so I have taped the loose end to the bike for now.This new bracket also has a different way of attaching the lock and provides 2 mounting adaptors, one is too small (12mm) for my shackle and the other is too big (16mm) so I have shimmed the shackle so the large adaptor fits.Once in place the bracket holds the lock very snug, I have no concerns about the lock moving or becoming un-attached while cycling.If it lasts as long as the last bracket then I consider it to be a bargain.
originally posted on ebay.com
Took a while to figure out where on my bike frame to fit it. When mounted horizontally the lock kept falling out and rattled a lot. When mounted vertically or angled downwards, lock stays put and does not rattle.
originally posted on eriksbikeshop.com
I have an e bike with odd size framing bars. This adapter did the trick for mounting my U lock. I did take some thinking to find the right spot, but it is on and looks like it belongs there.
| Product dimensions | 14.61 x 6.35 x 6.1 cm; 181.44 Grams |
| Is Discontinued By Manufacturer | No |
| Style | Spares |
| Finish | Painted |
| Included Components | Bracket includes tools to fit. |
Vintage U Lock Quick Release Mount For Bike Bicycle Easy Open
Delivery $31.75
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Kryptonite Transit Flex-Frame Bracket
Delivery $15
Kryptonite Transit FlexFrame U-lock holder - black/polished
Delivery $59.14
Kryptonite Transit Flexframe-U Bracket Lock Black/Steel
Delivery between Tue – Fri $9.90
Kryptonite Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for
Delivery between Tue – Wed $14.20
I bought this to replace an older bracket that had stopped working because a tiny spring had rusted to dust over 5 years of service.This new bracket has done away with the spring so should not suffer the same fate.Installation is really easy though I don't like the bit of strap that's left sticking out.I know the instructions say to cut it short and re-seal the end but I might want to move the bracket to a different part of the bike or a different bike all together so I have taped the loose end to the bike for now.This new bracket also has a different way of attaching the lock and provides 2 mounting adaptors, one is too small (12mm) for my shackle and the other is too big (16mm) so I have shimmed the shackle so the large adaptor fits.Once in place the bracket ... MoreI bought this to replace an older bracket that had stopped working because a tiny spring had rusted to dust over 5 years of service.This new bracket has done away with the spring so should not suffer the same fate.Installation is really easy though I don't like the bit of strap that's left sticking out.I know the instructions say to cut it short and re-seal the end but I might want to move the bracket to a different part of the bike or a different bike all together so I have taped the loose end to the bike for now.This new bracket also has a different way of attaching the lock and provides 2 mounting adaptors, one is too small (12mm) for my shackle and the other is too big (16mm) so I have shimmed the shackle so the large adaptor fits.Once in place the bracket holds the lock very snug, I have no concerns about the lock moving or becoming un-attached while cycling.If it lasts as long as the last bracket then I consider it to be a bargain.
Took a while to figure out where on my bike frame to fit it. When mounted horizontally the lock kept falling out and rattled a lot. When mounted vertically or angled downwards, lock stays put and does not rattle.
I have an e bike with odd size framing bars. This adapter did the trick for mounting my U lock. I did take some thinking to find the right spot, but it is on and looks like it belongs there.
Great product. Holds and secure the lock very well. Though it took a little work to secure it onto the small diameter handle bars for my Brompton bike, had to use hose clips after a little research. The bracket is surprisingly big, so stands out a lot from the small handle bar.
I were lost without this spare part so happy to find it on eBay so happy that the manufacturer supply spares for kryptonite this lock is heavy and not easy to carry manually. So to be able to buy this spare and fit it to my bicycle is a dream come true it's a perfect fit on my Allez specialized racing bike.
I agree with the other reviewers comments. Additionally, the first time I used the bracket, I hadn't engaged the lock property and as I was cycling, the lock fell out and hit out the road. I was quite upset I’d scuffed my new lock. After that I struggled to easily remove the lock once it was properly engaged until I put some grease on the bracket.
Kryptonite have created a simple yet versatile way to carry your bike lock. When I couldn't find a cheap lock with decent bracket to carry it I just thought if only I could get the same one as on the New York model i already own for my other bike and what do you know its sold separately and can be fitted to cheaper brands in seconds. Can't recommend it highly enough.
Rigid, secure carrier for U lock. Had to mount it on rear stay as no room in main frame. So occasionally it slips down and then can swing onto the wheel. I wrapped some tape on frame to prevent this and it's superb. Was reluctant to tighten fitting further in case the stay crushed - this warning was given in the instructions.
Didn’t fit my kryptonite New York u-lock. Plus it broke as only a tiny plastic washer kept it together and I couldn’t fix it.
It’s great to be able to buy this component by itself. Great if you have multiple bikes.
| Product dimensions | 14.61 x 6.35 x 6.1 cm; 181.44 Grams |
| Is Discontinued By Manufacturer | No |
| Style | Spares |
| Finish | Painted |
| Included Components | Bracket includes tools to fit. |
